Hay-rack and wagon-box jack.



N. P. PETERSEN.

HAY RACK AND WAGON BOX JAC'K. APPLICATION FILED JAN. 30. 1917.

1,238,329. Patented Aug. 28, 1917.

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E1 E1 I i w r I F EMEM. EMLE f m 1 A r smwmfoz Mega N. P. PETERSEN.

HAY RACK AND WAG ON BOX JACK. APPLICATION FILED MN. 30, 19!].

1,238,329. Patented Aug. 28,1917.

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qmwnm WRPefereeh NELS r. PETERSEN, or VERDI, MiNNESOTA.

I-iAY-itAoK Ann WAGON-BOX JACK.

Specification of Letters Patent. Patented Aug- 28, 1917,

At natimi fiia Januar 30, ieii. serial mamas.

To allwhom itmag concern.

Be it known that .LNELS. P. Pn'rnnsnn, a citizen of the United -States,residing ,at Verdi, in the county of Lincoln and State of Minnesota,have.,. i11ifented, certain. new and useful lmprovementsin Hay-Rack andlVagon-Box J acks, and I dodeclarethe fol: lowing to be a full,.clear,and exactdescrip tion ,ofthe invention, .such as will enable othersskilled in,the,,art .to which it appertains to make and use the same, 1

My invention has for it s; object to provide a simplyconstructed andinexpensive yet highly eflicient jack for raising andalowering hayracksand wagon boxes respectively from andonto the running gears thereofand with this general object in yiewr theainvention resides in certainnovehfeatures of construction and unique combinations of parts to behereinafter fully described and claimed, the. descriptive matter beingsup:

plemented by the accompanying drawings which constitute a part of thisapplication and in which:

Figure 1 is an end elevation of a wagon showing the improved jack inuse;

Fig. 2 is a vertical section on the plane of the line 2-2 of Fig. 1;

Fig. 3 is a horizontal section on the plane of the line 33 of Fig. 1;

Fig. i is a perspective view of the rack employed for supporting thewagon box or hay rack when the latter is not in use.

In the drawing above briefly described the numeral 1 designates broadlya pair of supports upon each of which is carried a vertical jack shank 2and means for operating it, the upper ends of said shanks beingconnected by a horizontal bar 3 adapted to support thereon the wagon boxW when the latter is raised from the running gear. Each support 1 isprovided with a hook 1 to engage the ends of the wagon bolsters B tosustain said supports while the jack is in operation.

Each support 1 is in the form of a flat casing preferably constructed asshown in the drawings, this construction consisting in bending anelongated rectangular plate 5 substantially upon itself along itsvertical center to form the two sides 6 of the casing and one end 7thereof, a vertically disposed bar 8 of wood or any other suitablematerial being interposed between the free ends of said sides 6 andsecured in place by bolts or the like 9 to form the other end of thecasing. It is to the bar-s8. thatthe vertical shanks o f. the hooks lare secured by bolts 10, the anglesbetweenwthe shanks and the bills of,the hooks being preferably reinforcedby braces-11 having one-.endsecured in place bythe uppermost of saidbolts 10. Thetop 12 and .botto1n-13.ofeachof the casings are formed of separate metal plates preferablyhaving their edges bent laterally to,,fo rm. flanges ll rivetedorotherwise secured in-contaet with. the outerifaces ofthe sides 6 andend ;.7.- One endofeaoh plate 1213 terminates at a point spaced inwardlyfrom the,inner.face ofrfil e adjacentbar Sito form. openings.- .through:WhlOlLytl1 jack; shanks2 slide, this endof said plates being. bypreference bent outwardly at right angles: to form shoes l5 to guidesaid shanks '2 As is shown most clearly in-Fig. 2, the edgezof the bars2 engaged by the shoes 15 are formed with-rack teeth 16-; while the: op-

positezedge of said shanks contact slidably with the bars 8 and thecountersunk heads of the bolts 10.

Mounted within the supports or casings 1 are spur gears 17 whose teethmesh with the teeth 16, said gears being keyed on a common shaft 18having a squared end 19 for the reception of a crank 20 by means ofwhich the gears are rotated to raise and lower the shanks 2. To hold theparts against retrograde movement, dogs 21 are mounted on a rock shaft22 for engagement with the teeth of the gears 17, said rock shaft beingmounted in suitable bearings carried by the casings 1 and being providedwith a crank 23 by means of which it is turned to release or apply thedogs as 00- casion may demand.

In operation, the hooks 4 are hooked over the ends of one of thebolsters B with the bar 3 then disposed beneath the hay rack or wagonbox W. The shaft 18 is now rotated by means of the crank 20 so that thegears 17 cause the ack shanks 2 to rise, thus lifting the box clear ofthe running gear. This end of the box may now be supported in anysuitable manner while the other end is raised in the same way afterwhich the runner gear will be pulled from under the box, or rack.

Preferably employed for supporting the box or rack when removed from therunning gear, is a rack shown in Fig. 4c. The rack in question consistsof four suitably spaced posts 25, brackets 26 carried by the upper endsthereof and horizontal bars 27 to rest' supported by the other bar 27.

From the foregoing taken in connection with the accompanying drawings.will be obvious that although the invention is of extremely simple andinexpensive nature it will be highly eflicient and durable. For thesereasons the construction shown constitutes the preferred form of theimproved jack but it is to be understood that within the scope of theinvention as claimed nu merous changes may be made without sacrificingthe principal advantages.

I claim:

1. A wagon box and hay rack jack comprising a pair of casings spacedhorizontally and means for supporting them, a horizontal shaft extendingbetween and through said casings and means for rotating said shaft, spurgears on said shaft and positioned in said casings, jack shanks slidablevertically through said casings and having rack teeth in mesh with saidgears, a horizontal rod extending between said casings and means forrocking said rod, and a pair of dogs secured on said rod and positionedin said casings in engagement with said gears to hold them againstretrograde movement.

2. A jack comprising a fiat vertically disposed casing and means forsupporting the same, said casing having at one end a vertical bar, thetop and bottom of said casing being bent respectively upwardly anddownwardly adjacent said bar to form a pair of openings and a pair ofvertically disposed shoes at one end thereof, a vertical ack shankreceived slidably in said openings and positioned in sliding contactwith said bar and shoes, and means in said casing for operating saidshank.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing Witnesses.

NELS P. PETERSEN.

Witnesses:

WARREN MILLER, GRovER BOVING.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. G.

